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Graphene Based Composites For Futre Applications Shaowei Zhang College of Engineering, Mathematics and Physical Sciences The University of Exeter
Outline Types of graphene based composites Useful properties of graphene in composites Potential applications of various types of graphhene composites
Graphene Based Composites (1) Polymer-Graphene Composites Metal-Graphene Composites Ceramic-Graphene Composites
Graphene Based Composites (2) Coating/Film/Paper Form Sandwich Form Bulk form
Useful Properties of Graphene in Composites Functional (e.g., Electrical) properties Thermal properties Mechanical properties + Lightweight, unique morphology, chemical stability.
Functional Graphene Composites (1) Li-Ion Batteries: 1) Graphene-metal oxide (e.g., SnO2) 2) Graphene-CNT 3) Graphene-C60
Functional Graphene Composites (2) Supercapacitors: 1) Graphene-oxide (e.g., ZnO, SnO 2, Co 3 O 4, MnO 2 ) 2) Graphene-polymer 3) Graphene-CNT
Functional Graphene Composites (3) Solar Cells 1) Graphene-TiO 2 2) Graphene-quantum dots Photocatalysts E.g., graphene-TiO 2 Fuel Cells: Graphene-oxide
Thermal Conductive Graphene Composites Intrinsic thermal conductivity: 3000–5000 W/mK (>100 times >Cu) Graphene-metal & Graphene-polymer composites Potential applications: Electronic circuit boards, heat sink and light weight high performance thermal management systems.
Graphene Reinforced Composites Mechanical properties: 1) Stiffest (E > 1 Tpa), 2) Strength: >100-GPa tensile strength (40 times > steel). Morphology: 2D shape Ideal reinforcement phases to make stronger and tougher composites for various applications
Graphene Reinforced Composites: Potential Applications Lightweight composites for aerospace & automotive industries Lightweight body/vehicle armours Biomaterials (biocompatibility + reinforcement) Composite brake discs
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